Best answer

You are on the right track using CSS to solve this display problem. Better yet, looking at your survey now, it seems you’ve already found some working CSS too!

To improve things further, I might recommend being more specific with your CSS selector, so as to not accidentally target other iframes that may be present in your survey. A second suggestion would be to use the `max-width` property rather than `width`, for any tablet users that may be visiting your survey.

Here’s a snippet that could be pretty easily applied to any survey to get this behavior, with low risk of adversely affecting the rest of the survey experience:

.sg-mobile-optimized .sg-video-player iframe {
max-width: 100%;
}

As a sidenote, other users on the Community are not able to edit your survey, even if you’ve shared the link to your survey.